although the application manager is part of the kernel, to enter it, you need to press '8' and power key simultaneously. or if the application program does not exist, the unit will automatically go to the application manager's menu upon power up.

    the three services: download, activate and upload provided by the application manager are explained in section 4.1. but what if you need to update a program or delete it? for both cases, you need to select the download menu and select the program to be updated or deleted. the application manager then shows the selected program's information such as program name, download time, used and free flash memory. and then please input 'c' to update the selected program, or input 'd' to delete it.